Shimano Ultegra FC-R8100 2x12 Speed Chainset 46/36T, 175mm

Shimano Ultegra FC-R8100 2x12 Speed Chainset 46/36T

• The HollowTech II 12-speed Ultegra chainset offers an ideal balance of light weight and stiffness, making it the perfect choice for both enthusiast and competitive riders.

• HollowGlide hollow outer chainring gives vast improvements in rigidity by virtually removing outer chainring flex and hugely improves shift performance, even under high load.

• The chainring teeth have been developed to work in conjunction with 12-speed HG chains for increased contact to provide greater efficiency and improved power transfer.

• Industry leading HollowTech II cold forged 4 arm hollow cranks have been evolved for maximum rigidity while reducing weight.

• A wide range of chainring options and crank arm lengths are available to meet the needs of all riders and racing disciplines.

An integral part of Shimano's new 12-speed road lineup, the FC-R8100 crank builds upon Shimano's legendary front shifting and transmission efficiency. With new refinements for seamless 12-speed shifting, the Ultegra 46/36T crank is offered in lengths from 165 to 175 mm to suit all types of rider and riding styles.

Technical specification:

• Speeds: 2x12s

• Crank arm length: 165mm, 170mm, 172.5mm, 175mm

• Chainring sizes: 46/36T

• Chain line: 44.5mm

• Q-factor: 148mm

• BCD: 110mm

• Compatible chain: HG 12-speed

• Weight: 702g

• Colour: Grey